The final and most important step is determining the quality of your data. And a pivotal part of planning this step is deciding when to do it. Should it be done before, during or after migration?
In almost all cases, you’ll want to implement data quality and observability checks as soon as possible. Why? Getting an accurate view of your existing data landscape allows you to address any issues upfront and avoid wasteful migration of certain data, and unnecessary costs. It helps prioritization for higher-quality sources that are both trustworthy and useful in the first place, accelerating the process and aiding in adoption and trust with stakeholders.
On the other hand, some scenarios might lend themselves to conducting a data quality assessment after migration. This approach may